function replaceAll(old_value){		
	var temp = old_value.replace(new RegExp('<',"gm"),'&lt;');		
	temp = temp.replace(new RegExp('>',"gm"),'&gt;');
	temp = temp.replace(new RegExp(' ',"gm"),'&nbsp;');
	temp = temp.replace(new RegExp('"',"gm"),'&quot;');
	temp = temp.replace(new RegExp("'","gm"),'&#39;');
	
	return temp;
}